L 3 -edge X-ray spectroscopy of rhodium and palladium compounds.

Autor: Suarez Orduz HA; ESRF - The European Synchrotron, 71 Avenue des Martyrs, 38000 Grenoble, France., Bugarin L; ESRF - The European Synchrotron, 71 Avenue des Martyrs, 38000 Grenoble, France., Heck SL; Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology, Engesserstr. 18/20, 76131 Karlsruhe, Germany., Dolcet P; Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology, Engesserstr. 18/20, 76131 Karlsruhe, Germany., Casapu M; Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology, Engesserstr. 18/20, 76131 Karlsruhe, Germany., Grunwaldt JD; Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology, Engesserstr. 18/20, 76131 Karlsruhe, Germany., Glatzel P; ESRF - The European Synchrotron, 71 Avenue des Martyrs, 38000 Grenoble, France.
Jazyk: angličtina
Zdroj: Journal of synchrotron radiation [J Synchrotron Radiat] 2024 Jul 01; Vol. 31 (Pt 4), pp. 733-740. Date of Electronic Publication: 2024 Jun 26.
DOI: 10.1107/S1600577524004673
Abstrakt: L 3 -edge high-energy-resolution fluorescence-detection X-ray absorption near-edge structure (XANES) spectra for palladium and rhodium compounds are presented, with focus on their electronic structures. The data are compared with transmission XANES spectra recorded at the K-edge. A correlation between the absorption edge energy and the metal ion oxidation state is not observed. Despite the different filling of the 4d orbitals and different local coordination, the Rh and Pd compounds show remarkably similar spectral shapes. Calculation of the density of states and of the L 3 -XANES data reproduce the experimental results.
(open access.)
Databáze: MEDLINE
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